Fri February 29, 2008 By:

how many pentagons or hexagon structures are there in fullerene

Expert Reply
Fri February 29, 2008

The energetic stability of structural isomers of C24, C26, C28, and C32 clusters, including fullerenes, is studied using diffusion quantum Monte Carlo methods. We predict that a C24 isomer is the smallest stable graphitic fragment and that the smallest stable fullerenes are the C26 and C28 clusters with C2v and Td symmetry, respectively. Given suitable experimental conditions these small fullerenes should therefore be producible in abundance, facilitating production of fullerene-based solids. graphitic means hexagonal rings.

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